Java – Extract ZIP File

import  java.io.*;
import java.util.zip.ZipInputStream;
import java.util.zip.ZipEntry;

public class UnzipDemo {
    public static void main(String[] args) {
        String zipname = "data.zip";
        try {
            FileInputStream fis = new FileInputStream(zipname);
            ZipInputStream zis = new ZipInputStream(new BufferedInputStream(fis));
            ZipEntry entry;
            
            // Read each entry from the ZipInputStream until no more entry found
            while ((entry = zis.getNextEntry()) != null) {
                System.out.println("Unzipping: " + entry.getName());
                int size;
                byte[] buffer = new byte[2048];
                FileOutputStream fos = new FileOutputStream(entry.getName());
                BufferedOutputStream bos = new BufferedOutputStream(fos, buffer.length);
                
                while ((size = zis.read(buffer, 0, buffer.length)) != -1) {
                    bos.write(buffer, 0, size);
                }
                bos.flush();
                bos.close();
            }
            zis.close();
            fis.close();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}

import java.io.*;

import java.util.zip.ZipInputStream;

import java.util.zip.ZipEntry;

public class UnzipDemo {

public static void main(String[] args) {

String zipname = "data.zip";

try {

FileInputStream fis = new FileInputStream(zipname);

ZipInputStream zis = new ZipInputStream(new BufferedInputStream(fis));

ZipEntry entry;

// Read each entry from the ZipInputStream until no more entry found

while ((entry = zis.getNextEntry()) != null) {

System.out.println("Unzipping: " + entry.getName());

int size;

byte[] buffer = new byte[2048];

FileOutputStream fos = new FileOutputStream(entry.getName());

BufferedOutputStream bos = new BufferedOutputStream(fos, buffer.length);

while ((size = zis.read(buffer, 0, buffer.length)) != -1) {

bos.write(buffer, 0, size);

}

bos.flush();

bos.close();

}

zis.close();

fis.close();

} catch (IOException e) {

e.printStackTrace();

}

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